Simulations of bubble division in the flow of a foam past an obstacle in a narrow channel

S. J. Cox*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (SciVal)
204 Downloads (Pure)

Abstract

When foams flow through porous media, the interaction of the lamellae with the walls of the channels leads to changes in the bubble size distribution. We predict these changes using Surface Evolver simulations of simple foam structures subject to bubble creation via lamella division. We use a model porous medium consisting of a disc in a straight channel. The position of the disc within the channel is shown to significantly affect the final polydispersity of the foam, with a slightly off-centre disc giving the highest polydispersity. We also find that after repeated passes of the foam through the channel, the process of bubble division eventually ceases, leaving a foam with an average bubble area slightly larger than the disc size. (C) 2014 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)104-108
Number of pages5
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume473
Early online date01 Nov 2014
DOIs
Publication statusPublished - 20 May 2015
Event10th Eufoam Conference, Thessaloniki, Greece,7-10 July, 2014 - Thessalonkiki, Greece
Duration: 07 Jul 201410 Jul 2014

Keywords

  • Foam generation
  • Bubble division
  • Porous media
  • Simulation

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